/**
 * Related to question Excel Sheet Column Title

Given a column title as appear in an Excel sheet, return its corresponding column number.

For example:

    A -> 1
    B -> 2
    C -> 3
    ...
    Z -> 26
    AA -> 27
    AB -> 28 
 */
/**
 * @author I321035
 *
 */
package problem171_Excel_Sheet_Column_Number;